UpRev to help with passing inspection?

seymore4 · 01-06-2015, 03:45 PM

All we can do with Uprev is disable the code so that the CEL doesn't come on, that's what a lot of tuners do automatically for customers with test pipes without even telling them. It will keep the CEL off, HOWEVER if you go for emissions and they perform an OBD2 scan some of your O2 functions will show up as "not ready".. whether that will fail you or not depends on the guy running the station.

wdkwang · 01-06-2015, 04:14 PM

Quote:

Originally Posted by seymore4

All we can do with Uprev is disable the code so that the CEL doesn't come on, that's what a lot of tuners do automatically for customers with test pipes without even telling them. It will keep the CEL off, HOWEVER if you go for emissions and they perform an OBD2 scan some of your O2 functions will show up as "not ready".. whether that will fail you or not depends on the guy running the station.

I see. So basically if I don't have a guy that'll risk a potential fine for passing me, then it'll be more troublesome for me since my OBD will never be able to show that it's completely ready?
If that's the case, then how do people who are tuned pass inspection if their OBD aren't ready ?

theDreamer · 01-06-2015, 04:17 PM

Quote:

Originally Posted by wdkwang

I see. So basically if I don't have a guy that'll risk a potential fine for passing me, then it'll be more troublesome for me since my OBD will never be able to show that it's completely ready?
If that's the case, then how do people who are tuned pass inspection if their OBD aren't ready ?

Look at ANMVQ post, you need correct extenders so the system reads correctly.
Uprev "could" help by tuning the car and see if brings it back inline so it does not throw the code while trying to leave on the sensors but not 100% guarantee.

wdkwang · 01-06-2015, 04:50 PM

Quote:

Originally Posted by theDreamer

Look at ANMVQ post, you need correct extenders so the system reads correctly.
Uprev "could" help by tuning the car and see if brings it back inline so it does not throw the code while trying to leave on the sensors but not 100% guarantee.

I found that extenders wouldn't do anything in my particular case with the pos Motordyne V1 pipes. You'll see in my posted thread in the past that the o2 bongs are completely covered up with metal for reasons I do not know (Warning do not buy Motordyne products).
I feel like I'm in a bit of a bind.

thangcu35 · 01-07-2015, 09:47 AM

Quote:

Originally Posted by wdkwang

I found that extenders wouldn't do anything in my particular case with the pos Motordyne V1 pipes. You'll see in my posted thread in the past that the o2 bongs are completely covered up with metal for reasons I do not know (Warning do not buy Motordyne products).
I feel like I'm in a bit of a bind.

The metal wires in there is to reduce the amount of exhaust reading at the sensor. Seriously, buy o2 defoulers $3 each at any autozone or advance auto parts install and watch the code disappear for good. Some cars require different defouler length to correctly offset the o2 readings.

Edit. Just saw the pics in your other thread. I dont know why it was completely shut off from the bung either. It shouldnt be like that. My guess is they forgot to drill a hole before welding on the o2 bung

ANMVQ · 01-08-2015, 09:55 AM

Quote:

Originally Posted by seymore4

All we can do with Uprev is disable the code so that the CEL doesn't come on, that's what a lot of tuners do automatically for customers with test pipes without even telling them. It will keep the CEL off, HOWEVER if you go for emissions and they perform an OBD2 scan some of your O2 functions will show up as "not ready".. whether that will fail you or not depends on the guy running the station.

This may work in other states but I believe in MA the scan tool sends the info right to the registry so its not up to the guy standing at the machine ?

Also Seymore4 do you disable the codes for HFC's or just TP's.

2011 Nismo#91 · 01-08-2015, 09:56 AM

Quote:

Originally Posted by seymore4

All we can do with Uprev is disable the code so that the CEL doesn't come on, that's what a lot of tuners do automatically for customers with test pipes without even telling them. It will keep the CEL off, HOWEVER if you go for emissions and they perform an OBD2 scan some of your O2 functions will show up as "not ready".. whether that will fail you or not depends on the guy running the station.

That's the no though required way to do it. With decent test pipes it would be hard to throw a CEL but with a decent tuner it would even be harder if even possible at all.

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01-06-2015, 03:45 PM	#1 (permalink)
seymore4 Track Member Join Date: Nov 2010 Location: West coast Age: 43 Posts: 560 Drives: 2010 nismo Rep Power: 6728	All we can do with Uprev is disable the code so that the CEL doesn't come on, that's what a lot of tuners do automatically for customers with test pipes without even telling them. It will keep the CEL off, HOWEVER if you go for emissions and they perform an OBD2 scan some of your O2 functions will show up as "not ready".. whether that will fail you or not depends on the guy running the station.